Massage stone



FIG. 1 is a perspective view of a massage stone showing my new design, as viewed from the front, right and top.

FIG. 2 is a perspective view thereof, as viewed from the rear, left, and top.

FIG. 3 is a perspective view thereof, as viewed from the front, left, and bottom.

FIG. 4 is a perspective view thereof, as viewed from the rear, right, and bottom.

FIG. 5 is a top view thereof.

FIG. 6 is a bottom view thereof.

FIG. 7 is a right side view thereof.

FIG. 8 is a left side view thereof.

FIG. 9 is a front view thereof.

FIG. 10 is a rear view thereof; and,

FIG. 11 is a cross-sectional view thereof, taken in the direction of line 11-11 in FIG. 5 . A cross-sectional view in the opposite direction is a mirror image. 

CLAIM The ornamental design for a massage stone, as shown and described. 